Lessons
Go · Expert
Go · Expert. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
Pass all ten lessons for the certificate. Sample · Claim

Lesson 1 · On the house
Escape analysis awareness
Stack vs heap decisions.

Lesson 2
sync/atomic and memory model
Lock-free counters carefully.

Lesson 3
Unsafe boundaries
unsafe.Pointer and rules.

Lesson 4
cgo sketch
Calling C carefully.

Lesson 5
API compatibility
Go 1 promise and module majors.

Lesson 6
High-performance I/O
buffers, pooling, and batching.

Lesson 7
Error design at scale
Opaque errors and sentinel discipline.

Lesson 8
Concurrency patterns
pipelines, fan-in, bounded workers.

Lesson 9
Security hygiene
Injection, TLS, and secrets.

Lesson 10
Expert capstone
Design a small concurrent API.
Sample certificate
Certificate of completion
Sign in to claim your certificate of completion.
Certificate
Finish all ten lessons, then sign in
Pass every lesson on this device (quizzes and checks). Then sign in or create an account to type your name and download the JPG.